News of the day seems to be ATI's Radeon 9600, which supercedes their 9500 in the middle of the range. Reviews on Tech-Report, Beyond3D, HotHardware, Bjorn3D, UKGamer and no doubt many more on the way.
Warp2Search collecting links to various Canterwood motherboard specs, while DWPG have some info from Corsair about which of their memory products to use with those motherboards.